Book Image

Web Development with Django - Second Edition

By : Ben Shaw, Saurabh Badhwar, Chris Guest, Bharath Chandra K S
4.7 (3)
Book Image

Web Development with Django - Second Edition

4.7 (3)
By: Ben Shaw, Saurabh Badhwar, Chris Guest, Bharath Chandra K S

Overview of this book

Do you want to develop reliable and secure applications that stand out from the crowd without spending hours on boilerplate code? You’ve made the right choice trusting the Django framework, and this book will tell you why. Often referred to as a “batteries included” web development framework, Django comes with all the core features needed to build a standalone application. Web Development with Django will take you through all the essential concepts and help you explore its power to build real-world applications using Python. Throughout the book, you’ll get the grips with the major features of Django by building a website called Bookr – a repository for book reviews. This end-to-end case study is split into a series of bitesize projects presented as exercises and activities, allowing you to challenge yourself in an enjoyable and attainable way. As you advance, you'll acquire various practical skills, including how to serve static files to add CSS, JavaScript, and images to your application, how to implement forms to accept user input, and how to manage sessions to ensure a reliable user experience. You’ll cover everyday tasks that are part of the development cycle of a real-world web application. By the end of this Django book, you'll have the skills and confidence to creatively develop and deploy your own projects.
Table of Contents (19 chapters)

Template tags

Template tags are a powerful feature of Django’s templating engine. They allow developers to build powerful templates by generating HTML by evaluating certain conditions and help avoid the repetitive writing of common code.

One example where we may use template tags is the sign-up/login options in the navigation bar of a website. In this case, we can use template tags to evaluate whether the visitor on the current page is logged in. Based on that, we can render either a profile banner or a sign-up/login banner.

Tags are also a common occurrence while developing templates. For example, consider the following line of code, which we used to import the custom filters inside our templates in the previous section:

{% load explode_filter %}

This uses a template tag known as load, responsible for loading the explode filter into the template. Template tags are much more powerful compared to filters. While filters have access only to the values they are operating...